By default, the Power tab in GNOME’s Settings does not show the battery percentage for Bluetooth headphones like the Sony WH-1000XM3. However, you can enable this feature by activating the DBUS interface of Bluez, the Linux Bluetooth protocol stack. The DBUS interface is hidden behind the --experimental flag for the Bluez service. To enable it, follow these steps:
- Create an override file for the
bluetoothservice:
$ sudo systemctl edit bluetooth
This command will create the file /etc/systemd/system/bluetooth.service.d/override.conf.
- Add the following lines to the file:
[Service]
ExecStart=
ExecStart=/usr/libexec/bluetooth/bluetoothd --experimental
Note that both ExecStart= lines are required.
- Restart the Bluetooth service.
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